/*
 * ar8327.c: AR8216 switch driver
 *
 * Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/list.h>
#include <linux/bitops.h>
#include <linux/switch.h>
#include <linux/delay.h>
#include <linux/phy.h>
#include <linux/lockdep.h>
#include <linux/ar8216_platform.h>
#include <linux/workqueue.h>
#include <linux/of_device.h>
#include <linux/leds.h>
#include <linux/mdio.h>

#include "ar8216.h"
#include "ar8327.h"

extern const struct ar8xxx_mib_desc ar8236_mibs[39];
extern const struct switch_attr ar8xxx_sw_attr_vlan[1];

static u32
ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg)
{
	u32 t;

	if (!cfg)
		return 0;

	t = 0;
	switch (cfg->mode) {
	case AR8327_PAD_NC:
		break;

	case AR8327_PAD_MAC2MAC_MII:
		t = AR8327_PAD_MAC_MII_EN;
		if (cfg->rxclk_sel)
			t |= AR8327_PAD_MAC_MII_RXCLK_SEL;
		if (cfg->txclk_sel)
			t |= AR8327_PAD_MAC_MII_TXCLK_SEL;
		break;

	case AR8327_PAD_MAC2MAC_GMII:
		t = AR8327_PAD_MAC_GMII_EN;
		if (cfg->rxclk_sel)
			t |= AR8327_PAD_MAC_GMII_RXCLK_SEL;
		if (cfg->txclk_sel)
			t |= AR8327_PAD_MAC_GMII_TXCLK_SEL;
		break;

	case AR8327_PAD_MAC_SGMII:
		t = AR8327_PAD_SGMII_EN;

		/*
		 * WAR for the QUalcomm Atheros AP136 board.
		 * It seems that RGMII TX/RX delay settings needs to be
		 * applied for SGMII mode as well, The ethernet is not
		 * reliable without this.
		 */
		t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
		t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
		if (cfg->rxclk_delay_en)
			t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
		if (cfg->txclk_delay_en)
			t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;

		if (cfg->sgmii_delay_en)
			t |= AR8327_PAD_SGMII_DELAY_EN;

		break;

	case AR8327_PAD_MAC2PHY_MII:
		t = AR8327_PAD_PHY_MII_EN;
		if (cfg->rxclk_sel)
			t |= AR8327_PAD_PHY_MII_RXCLK_SEL;
		if (cfg->txclk_sel)
			t |= AR8327_PAD_PHY_MII_TXCLK_SEL;
		break;

	case AR8327_PAD_MAC2PHY_GMII:
		t = AR8327_PAD_PHY_GMII_EN;
		if (cfg->pipe_rxclk_sel)
			t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL;
		if (cfg->rxclk_sel)
			t |= AR8327_PAD_PHY_GMII_RXCLK_SEL;
		if (cfg->txclk_sel)
			t |= AR8327_PAD_PHY_GMII_TXCLK_SEL;
		break;

	case AR8327_PAD_MAC_RGMII:
		t = AR8327_PAD_RGMII_EN;
		t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
		t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
		if (cfg->rxclk_delay_en)
			t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
		if (cfg->txclk_delay_en)
			t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
		break;

	case AR8327_PAD_PHY_GMII:
		t = AR8327_PAD_PHYX_GMII_EN;
		break;

	case AR8327_PAD_PHY_RGMII:
		t = AR8327_PAD_PHYX_RGMII_EN;
		break;

	case AR8327_PAD_PHY_MII:
		t = AR8327_PAD_PHYX_MII_EN;
		break;
	}

	return t;
}

static void
ar8327_phy_fixup(struct ar8xxx_priv *priv, int phy)
{
	switch (priv->chip_rev) {
	case 1:
		/* For 100M waveform */
		ar8xxx_phy_dbg_write(priv, phy, 0, 0x02ea);
		/* Turn on Gigabit clock */
		ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x68a0);
		break;

	case 2:
		ar8xxx_phy_mmd_write(priv, phy, 0x7, 0x3c, 0x0);
		/* fallthrough */
	case 4:
		ar8xxx_phy_mmd_write(priv, phy, 0x3, 0x800d, 0x803f);
		ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x6860);
		ar8xxx_phy_dbg_write(priv, phy, 0x5, 0x2c46);
		ar8xxx_phy_dbg_write(priv, phy, 0x3c, 0x6000);
		break;
	}
}

static u32
ar8327_get_port_init_status(struct ar8327_port_cfg *cfg)
{
	u32 t;

	if (!cfg->force_link)
		return AR8216_PORT_STATUS_LINK_AUTO;

	t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC;
	t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0;
	t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0;
	t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0;

	switch (cfg->speed) {
	case AR8327_PORT_SPEED_10:
		t |= AR8216_PORT_SPEED_10M;
		break;
	case AR8327_PORT_SPEED_100:
		t |= AR8216_PORT_SPEED_100M;
		break;
	case AR8327_PORT_SPEED_1000:
		t |= AR8216_PORT_SPEED_1000M;
		break;
	}

	return t;
}

#define AR8327_LED_ENTRY(_num, _reg, _shift) \
	[_num] = { .reg = (_reg), .shift = (_shift) }

static const struct ar8327_led_entry
ar8327_led_map[AR8327_NUM_LEDS] = {
	AR8327_LED_ENTRY(AR8327_LED_PHY0_0, 0, 14),
	AR8327_LED_ENTRY(AR8327_LED_PHY0_1, 1, 14),
	AR8327_LED_ENTRY(AR8327_LED_PHY0_2, 2, 14),

	AR8327_LED_ENTRY(AR8327_LED_PHY1_0, 3, 8),
	AR8327_LED_ENTRY(AR8327_LED_PHY1_1, 3, 10),
	AR8327_LED_ENTRY(AR8327_LED_PHY1_2, 3, 12),

	AR8327_LED_ENTRY(AR8327_LED_PHY2_0, 3, 14),
	AR8327_LED_ENTRY(AR8327_LED_PHY2_1, 3, 16),
	AR8327_LED_ENTRY(AR8327_LED_PHY2_2, 3, 18),

	AR8327_LED_ENTRY(AR8327_LED_PHY3_0, 3, 20),
	AR8327_LED_ENTRY(AR8327_LED_PHY3_1, 3, 22),
	AR8327_LED_ENTRY(AR8327_LED_PHY3_2, 3, 24),

	AR8327_LED_ENTRY(AR8327_LED_PHY4_0, 0, 30),
	AR8327_LED_ENTRY(AR8327_LED_PHY4_1, 1, 30),
	AR8327_LED_ENTRY(AR8327_LED_PHY4_2, 2, 30),
};

static void
ar8327_set_led_pattern(struct ar8xxx_priv *priv, unsigned int led_num,
		       enum ar8327_led_pattern pattern)
{
	const struct ar8327_led_entry *entry;

	entry = &ar8327_led_map[led_num];
	ar8xxx_rmw(priv, AR8327_REG_LED_CTRL(entry->reg),
		   (3 << entry->shift), pattern << entry->shift);
}

static void
ar8327_led_work_func(struct work_struct *work)
{
	struct ar8327_led *aled;
	u8 pattern;

	aled = container_of(work, struct ar8327_led, led_work);

	pattern = aled->pattern;

	ar8327_set_led_pattern(aled->sw_priv, aled->led_num,
			       pattern);
}

static void
ar8327_led_schedule_change(struct ar8327_led *aled, u8 pattern)
{
	if (aled->pattern == pattern)
		return;

	aled->pattern = pattern;
	schedule_work(&aled->led_work);
}

static inline struct ar8327_led *
led_cdev_to_ar8327_led(struct led_classdev *led_cdev)
{
	return container_of(led_cdev, struct ar8327_led, cdev);
}

static int
ar8327_led_blink_set(struct led_classdev *led_cdev,
		     unsigned long *delay_on,
		     unsigned long *delay_off)
{
	struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);

	if (*delay_on == 0 && *delay_off == 0) {
		*delay_on = 125;
		*delay_off = 125;
	}

	if (*delay_on != 125 || *delay_off != 125) {
		/*
		 * The hardware only supports blinking at 4Hz. Fall back
		 * to software implementation in other cases.
		 */
		return -EINVAL;
	}

	spin_lock(&aled->lock);

	aled->enable_hw_mode = false;
	ar8327_led_schedule_change(aled, AR8327_LED_PATTERN_BLINK);

	spin_unlock(&aled->lock);

	return 0;
}

static void
ar8327_led_set_brightness(struct led_classdev *led_cdev,
			  enum led_brightness brightness)
{
	struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
	u8 pattern;
	bool active;

	active = (brightness != LED_OFF);
	active ^= aled->active_low;

	pattern = (active) ? AR8327_LED_PATTERN_ON :
			     AR8327_LED_PATTERN_OFF;

	spin_lock(&aled->lock);

	aled->enable_hw_mode = false;
	ar8327_led_schedule_change(aled, pattern);

	spin_unlock(&aled->lock);
}

static ssize_t
ar8327_led_enable_hw_mode_show(struct device *dev,
			       struct device_attribute *attr,
			       char *buf)
{
	struct led_classdev *led_cdev = dev_get_drvdata(dev);
	struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
	ssize_t ret = 0;

	ret += scnprintf(buf, PAGE_SIZE, "%d\n", aled->enable_hw_mode);

	return ret;
}

static ssize_t
ar8327_led_enable_hw_mode_store(struct device *dev,
				struct device_attribute *attr,
				const char *buf,
				size_t size)
{
        struct led_classdev *led_cdev = dev_get_drvdata(dev);
	struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
	u8 pattern;
	u8 value;
	int ret;

	ret = kstrtou8(buf, 10, &value);
	if (ret < 0)
		return -EINVAL;

	spin_lock(&aled->lock);

	aled->enable_hw_mode = !!value;
	if (aled->enable_hw_mode)
		pattern = AR8327_LED_PATTERN_RULE;
	else
		pattern = AR8327_LED_PATTERN_OFF;

	ar8327_led_schedule_change(aled, pattern);

	spin_unlock(&aled->lock);

	return size;
}

static DEVICE_ATTR(enable_hw_mode,  S_IRUGO | S_IWUSR,
		   ar8327_led_enable_hw_mode_show,
		   ar8327_led_enable_hw_mode_store);

static int
ar8327_led_register(struct ar8327_led *aled)
{
	int ret;

	ret = led_classdev_register(NULL, &aled->cdev);
	if (ret < 0)
		return ret;

	if (aled->mode == AR8327_LED_MODE_HW) {
		ret = device_create_file(aled->cdev.dev,
					 &dev_attr_enable_hw_mode);
		if (ret)
			goto err_unregister;
	}

	return 0;

err_unregister:
	led_classdev_unregister(&aled->cdev);
	return ret;
}

static void
ar8327_led_unregister(struct ar8327_led *aled)
{
	if (aled->mode == AR8327_LED_MODE_HW)
		device_remove_file(aled->cdev.dev, &dev_attr_enable_hw_mode);

	led_classdev_unregister(&aled->cdev);
	cancel_work_sync(&aled->led_work);
}

static int
ar8327_led_create(struct ar8xxx_priv *priv,
		  const struct ar8327_led_info *led_info)
{
	struct ar8327_data *data = priv->chip_data;
	struct ar8327_led *aled;
	int ret;

	if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
		return 0;

	if (!led_info->name)
		return -EINVAL;

	if (led_info->led_num >= AR8327_NUM_LEDS)
		return -EINVAL;

	aled = kzalloc(sizeof(*aled) + strlen(led_info->name) + 1,
		       GFP_KERNEL);
	if (!aled)
		return -ENOMEM;

	aled->sw_priv = priv;
	aled->led_num = led_info->led_num;
	aled->active_low = led_info->active_low;
	aled->mode = led_info->mode;

	if (aled->mode == AR8327_LED_MODE_HW)
		aled->enable_hw_mode = true;

	aled->name = (char *)(aled + 1);
	strcpy(aled->name, led_info->name);

	aled->cdev.name = aled->name;
	aled->cdev.brightness_set = ar8327_led_set_brightness;
	aled->cdev.blink_set = ar8327_led_blink_set;
	aled->cdev.default_trigger = led_info->default_trigger;

	spin_lock_init(&aled->lock);
	mutex_init(&aled->mutex);
	INIT_WORK(&aled->led_work, ar8327_led_work_func);

	ret = ar8327_led_register(aled);
	if (ret)
		goto err_free;

	data->leds[data->num_leds++] = aled;

	return 0;

err_free:
	kfree(aled);
	return ret;
}

static void
ar8327_led_destroy(struct ar8327_led *aled)
{
	ar8327_led_unregister(aled);
	kfree(aled);
}

static void
ar8327_leds_init(struct ar8xxx_priv *priv)
{
	struct ar8327_data *data = priv->chip_data;
	unsigned i;

	if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
		return;

	for (i = 0; i < data->num_leds; i++) {
		struct ar8327_led *aled;

		aled = data->leds[i];

		if (aled->enable_hw_mode)
			aled->pattern = AR8327_LED_PATTERN_RULE;
		else
			aled->pattern = AR8327_LED_PATTERN_OFF;

		ar8327_set_led_pattern(priv, aled->led_num, aled->pattern);
	}
}

static void
ar8327_leds_cleanup(struct ar8xxx_priv *priv)
{
	struct ar8327_data *data = priv->chip_data;
	unsigned i;

	if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
		return;

	for (i = 0; i < data->num_leds; i++) {
		struct ar8327_led *aled;

		aled = data->leds[i];
		ar8327_led_destroy(aled);
	}

	kfree(data->leds);
}

static int
ar8327_hw_config_pdata(struct ar8xxx_priv *priv,
		       struct ar8327_platform_data *pdata)
{
	struct ar8327_led_cfg *led_cfg;
	struct ar8327_data *data = priv->chip_data;
	u32 pos, new_pos;
	u32 t;

	if (!pdata)
		return -EINVAL;

	priv->get_port_link = pdata->get_port_link;

	data->port0_status = ar8327_get_port_init_status(&pdata->port0_cfg);
	data->port6_status = ar8327_get_port_init_status(&pdata->port6_cfg);

	t = ar8327_get_pad_cfg(pdata->pad0_cfg);
	if (chip_is_ar8337(priv) && !pdata->pad0_cfg->mac06_exchange_dis)
	    t |= AR8337_PAD_MAC06_EXCHANGE_EN;
	ar8xxx_write(priv, AR8327_REG_PAD0_MODE, t);

	t = ar8327_get_pad_cfg(pdata->pad5_cfg);
	ar8xxx_write(priv, AR8327_REG_PAD5_MODE, t);
	t = ar8327_get_pad_cfg(pdata->pad6_cfg);
	ar8xxx_write(priv, AR8327_REG_PAD6_MODE, t);

	pos = ar8xxx_read(priv, AR8327_REG_POWER_ON_STRIP);
	new_pos = pos;

	led_cfg = pdata->led_cfg;
	if (led_cfg) {
		if (led_cfg->open_drain)
			new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN;
		else
			new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN;

		ar8xxx_write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0);
		ar8xxx_write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1);
		ar8xxx_write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2);
		ar8xxx_write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3);

		if (new_pos != pos)
			new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL;
	}

	if (pdata->sgmii_cfg) {
		t = pdata->sgmii_cfg->sgmii_ctrl;
		if (priv->chip_rev == 1)
			t |= AR8327_SGMII_CTRL_EN_PLL |
			     AR8327_SGMII_CTRL_EN_RX |
			     AR8327_SGMII_CTRL_EN_TX;
		else
			t &= ~(AR8327_SGMII_CTRL_EN_PLL |
			       AR8327_SGMII_CTRL_EN_RX |
			       AR8327_SGMII_CTRL_EN_TX);

		ar8xxx_write(priv, AR8327_REG_SGMII_CTRL, t);

		if (pdata->sgmii_cfg->serdes_aen)
			new_pos &= ~AR8327_POWER_ON_STRIP_SERDES_AEN;
		else
			new_pos |= AR8327_POWER_ON_STRIP_SERDES_AEN;
	}

	ar8xxx_write(priv, AR8327_REG_POWER_ON_STRIP, new_pos);

	if (pdata->leds && pdata->num_leds) {
		int i;

		data->leds = kzalloc(pdata->num_leds * sizeof(void *),
				     GFP_KERNEL);
		if (!data->leds)
			return -ENOMEM;

		for (i = 0; i < pdata->num_leds; i++)
			ar8327_led_create(priv, &pdata->leds[i]);
	}

	return 0;
}

#ifdef CONFIG_OF
static int
ar8327_hw_config_of(struct ar8xxx_priv *priv, struct device_node *np)
{
	struct ar8327_data *data = priv->chip_data;
	const __be32 *paddr;
	int len;
	int i;

	paddr = of_get_property(np, "qca,ar8327-initvals", &len);
	if (!paddr || len < (2 * sizeof(*paddr)))
		return -EINVAL;

	len /= sizeof(*paddr);

	for (i = 0; i < len - 1; i += 2) {
		u32 reg;
		u32 val;

		reg = be32_to_cpup(paddr + i);
		val = be32_to_cpup(paddr + i + 1);

		switch (reg) {
		case AR8327_REG_PORT_STATUS(0):
			data->port0_status = val;
			break;
		case AR8327_REG_PORT_STATUS(6):
			data->port6_status = val;
			break;
		default:
			ar8xxx_write(priv, reg, val);
			break;
		}
	}

	return 0;
}
#else
static inline int
ar8327_hw_config_of(struct ar8xxx_priv *priv, struct device_node *np)
{
	return -EINVAL;
}
#endif

static int
ar8327_hw_init(struct ar8xxx_priv *priv)
{
	int ret;

	priv->chip_data = kzalloc(sizeof(struct ar8327_data), GFP_KERNEL);
	if (!priv->chip_data)
		return -ENOMEM;

	if (priv->phy->mdio.dev.of_node)
		ret = ar8327_hw_config_of(priv, priv->phy->mdio.dev.of_node);
	else
		ret = ar8327_hw_config_pdata(priv,
					     priv->phy->mdio.dev.platform_data);

	if (ret)
		return ret;

	ar8327_leds_init(priv);

	ar8xxx_phy_init(priv);

	return 0;
}

static void
ar8327_cleanup(struct ar8xxx_priv *priv)
{
	ar8327_leds_cleanup(priv);
}

static void
ar8327_init_globals(struct ar8xxx_priv *priv)
{
	struct ar8327_data *data = priv->chip_data;
	u32 t;
	int i;

	/* enable CPU port and disable mirror port */
	t = AR8327_FWD_CTRL0_CPU_PORT_EN |
	    AR8327_FWD_CTRL0_MIRROR_PORT;
	ar8xxx_write(priv, AR8327_REG_FWD_CTRL0, t);

	/* forward multicast and broadcast frames to CPU */
	t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) |
	    (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) |
	    (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S);
	ar8xxx_write(priv, AR8327_REG_FWD_CTRL1, t);

	/* enable jumbo frames */
	ar8xxx_rmw(priv, AR8327_REG_MAX_FRAME_SIZE,
		   AR8327_MAX_FRAME_SIZE_MTU, 9018 + 8 + 2);

	/* Enable MIB counters */
	ar8xxx_reg_set(priv, AR8327_REG_MODULE_EN,
		       AR8327_MODULE_EN_MIB);

	/* Disable EEE on all phy's due to stability issues */
	for (i = 0; i < AR8XXX_NUM_PHYS; i++)
		data->eee[i] = false;
}

static void
ar8327_init_port(struct ar8xxx_priv *priv, int port)
{
	struct ar8327_data *data = priv->chip_data;
	u32 t;

	if (port == AR8216_PORT_CPU)
		t = data->port0_status;
	else if (port == 6)
		t = data->port6_status;
	else
		t = AR8216_PORT_STATUS_LINK_AUTO;

	if (port != AR8216_PORT_CPU && port != 6) {
		/*hw limitation:if configure mac when there is traffic,
		port MAC may work abnormal. Need disable lan&wan mac at fisrt*/
		ar8xxx_write(priv, AR8327_REG_PORT_STATUS(port), 0);
		msleep(100);
		t |= AR8216_PORT_STATUS_FLOW_CONTROL;
		ar8xxx_write(priv, AR8327_REG_PORT_STATUS(port), t);
	} else {
		ar8xxx_write(priv, AR8327_REG_PORT_STATUS(port), t);
	}

	ar8xxx_write(priv, AR8327_REG_PORT_HEADER(port), 0);

	ar8xxx_write(priv, AR8327_REG_PORT_VLAN0(port), 0);

	t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S;
	ar8xxx_write(priv, AR8327_REG_PORT_VLAN1(port), t);

	t = AR8327_PORT_LOOKUP_LEARN;
	t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
	ar8xxx_write(priv, AR8327_REG_PORT_LOOKUP(port), t);
}

static u32
ar8327_read_port_status(struct ar8xxx_priv *priv, int port)
{
	u32 t;

	t = ar8xxx_read(priv, AR8327_REG_PORT_STATUS(port));
	/* map the flow control autoneg result bits to the flow control bits
	 * used in forced mode to allow ar8216_read_port_link detect
	 * flow control properly if autoneg is used
	 */
	if (t & AR8216_PORT_STATUS_LINK_UP &&
	    t & AR8216_PORT_STATUS_LINK_AUTO) {
		t &= ~(AR8216_PORT_STATUS_TXFLOW | AR8216_PORT_STATUS_RXFLOW);
		if (t & AR8327_PORT_STATUS_TXFLOW_AUTO)
			t |= AR8216_PORT_STATUS_TXFLOW;
		if (t & AR8327_PORT_STATUS_RXFLOW_AUTO)
			t |= AR8216_PORT_STATUS_RXFLOW;
	}

	return t;
}

static u32
ar8327_read_port_eee_status(struct ar8xxx_priv *priv, int port)
{
	int phy;
	u16 t;

	if (port >= priv->dev.ports)
		return 0;

	if (port == 0 || port == 6)
		return 0;

	phy = port - 1;

	/* EEE Ability Auto-negotiation Result */
	t = ar8xxx_phy_mmd_read(priv, phy, 0x7, 0x8000);

	return mmd_eee_adv_to_ethtool_adv_t(t);
}

static int
ar8327_atu_flush(struct ar8xxx_priv *priv)
{
	int ret;

	ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
			      AR8327_ATU_FUNC_BUSY, 0);
	if (!ret)
		ar8xxx_write(priv, AR8327_REG_ATU_FUNC,
			     AR8327_ATU_FUNC_OP_FLUSH |
			     AR8327_ATU_FUNC_BUSY);

	return ret;
}

static int
ar8327_atu_flush_port(struct ar8xxx_priv *priv, int port)
{
	u32 t;
	int ret;

	ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
			      AR8327_ATU_FUNC_BUSY, 0);
	if (!ret) {
		t = (port << AR8327_ATU_PORT_NUM_S);
		t |= AR8327_ATU_FUNC_OP_FLUSH_PORT;
		t |= AR8327_ATU_FUNC_BUSY;
		ar8xxx_write(priv, AR8327_REG_ATU_FUNC, t);
	}

	return ret;
}

static int
ar8327_get_port_igmp(struct ar8xxx_priv *priv, int port)
{
	u32 fwd_ctrl, frame_ack;

	fwd_ctrl = (BIT(port) << AR8327_FWD_CTRL1_IGMP_S);
	frame_ack = ((AR8327_FRAME_ACK_CTRL_IGMP_MLD |
		      AR8327_FRAME_ACK_CTRL_IGMP_JOIN |
		      AR8327_FRAME_ACK_CTRL_IGMP_LEAVE) <<
		     AR8327_FRAME_ACK_CTRL_S(port));

	return (ar8xxx_read(priv, AR8327_REG_FWD_CTRL1) &
			fwd_ctrl) == fwd_ctrl &&
		(ar8xxx_read(priv, AR8327_REG_FRAME_ACK_CTRL(port)) &
			frame_ack) == frame_ack;
}

static void
ar8327_set_port_igmp(struct ar8xxx_priv *priv, int port, int enable)
{
	int reg_frame_ack = AR8327_REG_FRAME_ACK_CTRL(port);
	u32 val_frame_ack = (AR8327_FRAME_ACK_CTRL_IGMP_MLD |
			  AR8327_FRAME_ACK_CTRL_IGMP_JOIN |
			  AR8327_FRAME_ACK_CTRL_IGMP_LEAVE) <<
			 AR8327_FRAME_ACK_CTRL_S(port);

	if (enable) {
		ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL1,
			   BIT(port) << AR8327_FWD_CTRL1_MC_FLOOD_S,
			   BIT(port) << AR8327_FWD_CTRL1_IGMP_S);
		ar8xxx_reg_set(priv, reg_frame_ack, val_frame_ack);
	} else {
		ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL1,
			   BIT(port) << AR8327_FWD_CTRL1_IGMP_S,
			   BIT(port) << AR8327_FWD_CTRL1_MC_FLOOD_S);
		ar8xxx_reg_clear(priv, reg_frame_ack, val_frame_ack);
	}
}

static void
ar8327_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val)
{
	if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1,
			    AR8327_VTU_FUNC1_BUSY, 0))
		return;

	if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD)
		ar8xxx_write(priv, AR8327_REG_VTU_FUNC0, val);

	op |= AR8327_VTU_FUNC1_BUSY;
	ar8xxx_write(priv, AR8327_REG_VTU_FUNC1, op);
}

static void
ar8327_vtu_flush(struct ar8xxx_priv *priv)
{
	ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0);
}

static void
ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
{
	u32 op;
	u32 val;
	int i;

	op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
	val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
	for (i = 0; i < AR8327_NUM_PORTS; i++) {
		u32 mode;

		if ((port_mask & BIT(i)) == 0)
			mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
		else if (priv->vlan == 0)
			mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
		else if ((priv->vlan_tagged & BIT(i)) || (priv->vlan_id[priv->pvid[i]] != vid))
			mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
		else
			mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;

		val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i);
	}
	ar8327_vtu_op(priv, op, val);
}

static void
ar8327_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
{
	u32 t;
	u32 egress, ingress;
	u32 pvid = priv->vlan_id[priv->pvid[port]];

	if (priv->vlan) {
		egress = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
		ingress = AR8216_IN_SECURE;
	} else {
		egress = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
		ingress = AR8216_IN_PORT_ONLY;
	}

	t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
	t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
	if (priv->vlan && priv->port_vlan_prio[port]) {
		u32 prio = priv->port_vlan_prio[port];

		t |= prio << AR8327_PORT_VLAN0_DEF_SPRI_S;
		t |= prio << AR8327_PORT_VLAN0_DEF_CPRI_S;
	}
	ar8xxx_write(priv, AR8327_REG_PORT_VLAN0(port), t);

	t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
	t |= egress << AR8327_PORT_VLAN1_OUT_MODE_S;
	if (priv->vlan && priv->port_vlan_prio[port])
		t |= AR8327_PORT_VLAN1_VLAN_PRI_PROP;

	ar8xxx_write(priv, AR8327_REG_PORT_VLAN1(port), t);

	t = members;
	t |= AR8327_PORT_LOOKUP_LEARN;
	t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S;
	t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
	ar8xxx_write(priv, AR8327_REG_PORT_LOOKUP(port), t);
}

static int
ar8327_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	u8 ports = priv->vlan_table[val->port_vlan];
	int i;

	val->len = 0;
	for (i = 0; i < dev->ports; i++) {
		struct switch_port *p;

		if (!(ports & (1 << i)))
			continue;

		p = &val->value.ports[val->len++];
		p->id = i;
		if ((priv->vlan_tagged & (1 << i)) || (priv->pvid[i] != val->port_vlan))
			p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
		else
			p->flags = 0;
	}
	return 0;
}

static int
ar8327_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	u8 *vt = &priv->vlan_table[val->port_vlan];
	int i;

	*vt = 0;
	for (i = 0; i < val->len; i++) {
		struct switch_port *p = &val->value.ports[i];

		if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
			if (val->port_vlan == priv->pvid[p->id]) {
				priv->vlan_tagged |= (1 << p->id);
			}
		} else {
			priv->vlan_tagged &= ~(1 << p->id);
			priv->pvid[p->id] = val->port_vlan;
		}

		*vt |= 1 << p->id;
	}
	return 0;
}

static void
ar8327_set_mirror_regs(struct ar8xxx_priv *priv)
{
	int port;

	/* reset all mirror registers */
	ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL0,
		   AR8327_FWD_CTRL0_MIRROR_PORT,
		   (0xF << AR8327_FWD_CTRL0_MIRROR_PORT_S));
	for (port = 0; port < AR8327_NUM_PORTS; port++) {
		ar8xxx_reg_clear(priv, AR8327_REG_PORT_LOOKUP(port),
			   AR8327_PORT_LOOKUP_ING_MIRROR_EN);

		ar8xxx_reg_clear(priv, AR8327_REG_PORT_HOL_CTRL1(port),
			   AR8327_PORT_HOL_CTRL1_EG_MIRROR_EN);
	}

	/* now enable mirroring if necessary */
	if (priv->source_port >= AR8327_NUM_PORTS ||
	    priv->monitor_port >= AR8327_NUM_PORTS ||
	    priv->source_port == priv->monitor_port) {
		return;
	}

	ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL0,
		   AR8327_FWD_CTRL0_MIRROR_PORT,
		   (priv->monitor_port << AR8327_FWD_CTRL0_MIRROR_PORT_S));

	if (priv->mirror_rx)
		ar8xxx_reg_set(priv, AR8327_REG_PORT_LOOKUP(priv->source_port),
			   AR8327_PORT_LOOKUP_ING_MIRROR_EN);

	if (priv->mirror_tx)
		ar8xxx_reg_set(priv, AR8327_REG_PORT_HOL_CTRL1(priv->source_port),
			   AR8327_PORT_HOL_CTRL1_EG_MIRROR_EN);
}

static int
ar8327_sw_set_eee(struct switch_dev *dev,
		  const struct switch_attr *attr,
		  struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	struct ar8327_data *data = priv->chip_data;
	int port = val->port_vlan;
	int phy;

	if (port >= dev->ports)
		return -EINVAL;
	if (port == 0 || port == 6)
		return -EOPNOTSUPP;

	phy = port - 1;

	data->eee[phy] = !!(val->value.i);

	return 0;
}

static int
ar8327_sw_get_eee(struct switch_dev *dev,
		  const struct switch_attr *attr,
		  struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	const struct ar8327_data *data = priv->chip_data;
	int port = val->port_vlan;
	int phy;

	if (port >= dev->ports)
		return -EINVAL;
	if (port == 0 || port == 6)
		return -EOPNOTSUPP;

	phy = port - 1;

	val->value.i = data->eee[phy];

	return 0;
}

static void
ar8327_wait_atu_ready(struct ar8xxx_priv *priv, u16 r2, u16 r1)
{
	int timeout = 20;

	while (ar8xxx_mii_read32(priv, r2, r1) & AR8327_ATU_FUNC_BUSY && --timeout) {
		udelay(10);
		cond_resched();
	}

	if (!timeout)
		pr_err("ar8327: timeout waiting for atu to become ready\n");
}

static void ar8327_get_arl_entry(struct ar8xxx_priv *priv,
				 struct arl_entry *a, u32 *status, enum arl_op op)
{
	struct mii_bus *bus = priv->mii_bus;
	u16 r2, page;
	u16 r1_data0, r1_data1, r1_data2, r1_func;
	u32 t, val0, val1, val2;
	int i;

	split_addr(AR8327_REG_ATU_DATA0, &r1_data0, &r2, &page);
	r2 |= 0x10;

	r1_data1 = (AR8327_REG_ATU_DATA1 >> 1) & 0x1e;
	r1_data2 = (AR8327_REG_ATU_DATA2 >> 1) & 0x1e;
	r1_func  = (AR8327_REG_ATU_FUNC >> 1) & 0x1e;

	switch (op) {
	case AR8XXX_ARL_INITIALIZE:
		/* all ATU registers are on the same page
		* therefore set page only once
		*/
		bus->write(bus, 0x18, 0, page);
		wait_for_page_switch();

		ar8327_wait_atu_ready(priv, r2, r1_func);

		ar8xxx_mii_write32(priv, r2, r1_data0, 0);
		ar8xxx_mii_write32(priv, r2, r1_data1, 0);
		ar8xxx_mii_write32(priv, r2, r1_data2, 0);
		break;
	case AR8XXX_ARL_GET_NEXT:
		ar8xxx_mii_write32(priv, r2, r1_func,
				   AR8327_ATU_FUNC_OP_GET_NEXT |
				   AR8327_ATU_FUNC_BUSY);
		ar8327_wait_atu_ready(priv, r2, r1_func);

		val0 = ar8xxx_mii_read32(priv, r2, r1_data0);
		val1 = ar8xxx_mii_read32(priv, r2, r1_data1);
		val2 = ar8xxx_mii_read32(priv, r2, r1_data2);

		*status = val2 & AR8327_ATU_STATUS;
		if (!*status)
			break;

		i = 0;
		t = AR8327_ATU_PORT0;
		while (!(val1 & t) && ++i < AR8327_NUM_PORTS)
			t <<= 1;

		a->port = i;
		a->mac[0] = (val0 & AR8327_ATU_ADDR0) >> AR8327_ATU_ADDR0_S;
		a->mac[1] = (val0 & AR8327_ATU_ADDR1) >> AR8327_ATU_ADDR1_S;
		a->mac[2] = (val0 & AR8327_ATU_ADDR2) >> AR8327_ATU_ADDR2_S;
		a->mac[3] = (val0 & AR8327_ATU_ADDR3) >> AR8327_ATU_ADDR3_S;
		a->mac[4] = (val1 & AR8327_ATU_ADDR4) >> AR8327_ATU_ADDR4_S;
		a->mac[5] = (val1 & AR8327_ATU_ADDR5) >> AR8327_ATU_ADDR5_S;
		break;
	}
}

static int
ar8327_sw_hw_apply(struct switch_dev *dev)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	const struct ar8327_data *data = priv->chip_data;
	int ret, i;

	ret = ar8xxx_sw_hw_apply(dev);
	if (ret)
		return ret;

	for (i=0; i < AR8XXX_NUM_PHYS; i++) {
		if (data->eee[i])
			ar8xxx_reg_clear(priv, AR8327_REG_EEE_CTRL,
			       AR8327_EEE_CTRL_DISABLE_PHY(i));
		else
			ar8xxx_reg_set(priv, AR8327_REG_EEE_CTRL,
			       AR8327_EEE_CTRL_DISABLE_PHY(i));
	}

	return 0;
}

int
ar8327_sw_get_port_igmp_snooping(struct switch_dev *dev,
				 const struct switch_attr *attr,
				 struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	int port = val->port_vlan;

	if (port >= dev->ports)
		return -EINVAL;

	mutex_lock(&priv->reg_mutex);
	val->value.i = ar8327_get_port_igmp(priv, port);
	mutex_unlock(&priv->reg_mutex);

	return 0;
}

int
ar8327_sw_set_port_igmp_snooping(struct switch_dev *dev,
				 const struct switch_attr *attr,
				 struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	int port = val->port_vlan;

	if (port >= dev->ports)
		return -EINVAL;

	mutex_lock(&priv->reg_mutex);
	ar8327_set_port_igmp(priv, port, val->value.i);
	mutex_unlock(&priv->reg_mutex);

	return 0;
}

int
ar8327_sw_get_igmp_snooping(struct switch_dev *dev,
			    const struct switch_attr *attr,
			    struct switch_val *val)
{
	int port;

	for (port = 0; port < dev->ports; port++) {
		val->port_vlan = port;
		if (ar8327_sw_get_port_igmp_snooping(dev, attr, val) ||
		    !val->value.i)
			break;
	}

	return 0;
}

int
ar8327_sw_set_igmp_snooping(struct switch_dev *dev,
			    const struct switch_attr *attr,
			    struct switch_val *val)
{
	int port;

	for (port = 0; port < dev->ports; port++) {
		val->port_vlan = port;
		if (ar8327_sw_set_port_igmp_snooping(dev, attr, val))
			break;
	}

	return 0;
}

int
ar8327_sw_get_igmp_v3(struct switch_dev *dev,
		      const struct switch_attr *attr,
		      struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	u32 val_reg;

	mutex_lock(&priv->reg_mutex);
	val_reg = ar8xxx_read(priv, AR8327_REG_FRAME_ACK_CTRL1);
	val->value.i = ((val_reg & AR8327_FRAME_ACK_CTRL_IGMP_V3_EN) != 0);
	mutex_unlock(&priv->reg_mutex);

	return 0;
}

int
ar8327_sw_set_igmp_v3(struct switch_dev *dev,
		      const struct switch_attr *attr,
		      struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);

	mutex_lock(&priv->reg_mutex);
	if (val->value.i)
		ar8xxx_reg_set(priv, AR8327_REG_FRAME_ACK_CTRL1,
			       AR8327_FRAME_ACK_CTRL_IGMP_V3_EN);
	else
		ar8xxx_reg_clear(priv, AR8327_REG_FRAME_ACK_CTRL1,
				 AR8327_FRAME_ACK_CTRL_IGMP_V3_EN);
	mutex_unlock(&priv->reg_mutex);

	return 0;
}

static int
ar8327_sw_set_port_vlan_prio(struct switch_dev *dev, const struct switch_attr *attr,
			     struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	int port = val->port_vlan;

	if (port >= dev->ports)
		return -EINVAL;
	if (port == 0 || port == 6)
		return -EOPNOTSUPP;
	if (val->value.i < 0 || val->value.i > 7)
		return -EINVAL;

	priv->port_vlan_prio[port] = val->value.i;

	return 0;
}

static int
ar8327_sw_get_port_vlan_prio(struct switch_dev *dev, const struct switch_attr *attr,
                  struct switch_val *val)
{
	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
	int port = val->port_vlan;

	val->value.i = priv->port_vlan_prio[port];

	return 0;
}

static const struct switch_attr ar8327_sw_attr_globals[] = {
	{
		.type = SWITCH_TYPE_INT,
		.name = "enable_vlan",
		.description = "Enable VLAN mode",
		.set = ar8xxx_sw_set_vlan,
		.get = ar8xxx_sw_get_vlan,
		.max = 1
	},
	{
		.type = SWITCH_TYPE_NOVAL,
		.name = "reset_mibs",
		.description = "Reset all MIB counters",
		.set = ar8xxx_sw_set_reset_mibs,
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "enable_mirror_rx",
		.description = "Enable mirroring of RX packets",
		.set = ar8xxx_sw_set_mirror_rx_enable,
		.get = ar8xxx_sw_get_mirror_rx_enable,
		.max = 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "enable_mirror_tx",
		.description = "Enable mirroring of TX packets",
		.set = ar8xxx_sw_set_mirror_tx_enable,
		.get = ar8xxx_sw_get_mirror_tx_enable,
		.max = 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "mirror_monitor_port",
		.description = "Mirror monitor port",
		.set = ar8xxx_sw_set_mirror_monitor_port,
		.get = ar8xxx_sw_get_mirror_monitor_port,
		.max = AR8327_NUM_PORTS - 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "mirror_source_port",
		.description = "Mirror source port",
		.set = ar8xxx_sw_set_mirror_source_port,
		.get = ar8xxx_sw_get_mirror_source_port,
		.max = AR8327_NUM_PORTS - 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "arl_age_time",
		.description = "ARL age time (secs)",
		.set = ar8xxx_sw_set_arl_age_time,
		.get = ar8xxx_sw_get_arl_age_time,
	},
	{
		.type = SWITCH_TYPE_STRING,
		.name = "arl_table",
		.description = "Get ARL table",
		.set = NULL,
		.get = ar8xxx_sw_get_arl_table,
	},
	{
		.type = SWITCH_TYPE_NOVAL,
		.name = "flush_arl_table",
		.description = "Flush ARL table",
		.set = ar8xxx_sw_set_flush_arl_table,
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "igmp_snooping",
		.description = "Enable IGMP Snooping",
		.set = ar8327_sw_set_igmp_snooping,
		.get = ar8327_sw_get_igmp_snooping,
		.max = 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "igmp_v3",
		.description = "Enable IGMPv3 support",
		.set = ar8327_sw_set_igmp_v3,
		.get = ar8327_sw_get_igmp_v3,
		.max = 1
	},
};

static const struct switch_attr ar8327_sw_attr_port[] = {
	{
		.type = SWITCH_TYPE_NOVAL,
		.name = "reset_mib",
		.description = "Reset single port MIB counters",
		.set = ar8xxx_sw_set_port_reset_mib,
	},
	{
		.type = SWITCH_TYPE_STRING,
		.name = "mib",
		.description = "Get port's MIB counters",
		.set = NULL,
		.get = ar8xxx_sw_get_port_mib,
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "enable_eee",
		.description = "Enable EEE PHY sleep mode",
		.set = ar8327_sw_set_eee,
		.get = ar8327_sw_get_eee,
		.max = 1,
	},
	{
		.type = SWITCH_TYPE_NOVAL,
		.name = "flush_arl_table",
		.description = "Flush port's ARL table entries",
		.set = ar8xxx_sw_set_flush_port_arl_table,
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "igmp_snooping",
		.description = "Enable port's IGMP Snooping",
		.set = ar8327_sw_set_port_igmp_snooping,
		.get = ar8327_sw_get_port_igmp_snooping,
		.max = 1
	},
	{
		.type = SWITCH_TYPE_INT,
		.name = "vlan_prio",
		.description = "Port VLAN default priority (VLAN PCP) (0-7)",
		.set = ar8327_sw_set_port_vlan_prio,
		.get = ar8327_sw_get_port_vlan_prio,
		.max = 7,
	},
};

static const struct switch_dev_ops ar8327_sw_ops = {
	.attr_global = {
		.attr = ar8327_sw_attr_globals,
		.n_attr = ARRAY_SIZE(ar8327_sw_attr_globals),
	},
	.attr_port = {
		.attr = ar8327_sw_attr_port,
		.n_attr = ARRAY_SIZE(ar8327_sw_attr_port),
	},
	.attr_vlan = {
		.attr = ar8xxx_sw_attr_vlan,
		.n_attr = ARRAY_SIZE(ar8xxx_sw_attr_vlan),
	},
	.get_port_pvid = ar8xxx_sw_get_pvid,
	.set_port_pvid = ar8xxx_sw_set_pvid,
	.get_vlan_ports = ar8327_sw_get_ports,
	.set_vlan_ports = ar8327_sw_set_ports,
	.apply_config = ar8327_sw_hw_apply,
	.reset_switch = ar8xxx_sw_reset_switch,
	.get_port_link = ar8xxx_sw_get_port_link,
/* The following op is disabled as it hogs the CPU and degrades performance.
   An implementation has been attempted in 4d8a66d but reading MIB data is slow
   on ar8xxx switches.

   The high CPU load has been traced down to the ar8xxx_reg_wait() call in
   ar8xxx_mib_op(), which has to usleep_range() till the MIB busy flag set by
   the request to update the MIB counter is cleared. */
#if 0
	.get_port_stats = ar8xxx_sw_get_port_stats,
#endif
};

const struct ar8xxx_chip ar8327_chip = {
	.caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
	.config_at_probe = true,
	.mii_lo_first = true,

	.name = "Atheros AR8327",
	.ports = AR8327_NUM_PORTS,
	.vlans = AR8X16_MAX_VLANS,
	.swops = &ar8327_sw_ops,

	.reg_port_stats_start = 0x1000,
	.reg_port_stats_length = 0x100,
	.reg_arl_ctrl = AR8327_REG_ARL_CTRL,

	.hw_init = ar8327_hw_init,
	.cleanup = ar8327_cleanup,
	.init_globals = ar8327_init_globals,
	.init_port = ar8327_init_port,
	.setup_port = ar8327_setup_port,
	.read_port_status = ar8327_read_port_status,
	.read_port_eee_status = ar8327_read_port_eee_status,
	.atu_flush = ar8327_atu_flush,
	.atu_flush_port = ar8327_atu_flush_port,
	.vtu_flush = ar8327_vtu_flush,
	.vtu_load_vlan = ar8327_vtu_load_vlan,
	.phy_fixup = ar8327_phy_fixup,
	.set_mirror_regs = ar8327_set_mirror_regs,
	.get_arl_entry = ar8327_get_arl_entry,
	.sw_hw_apply = ar8327_sw_hw_apply,

	.num_mibs = ARRAY_SIZE(ar8236_mibs),
	.mib_decs = ar8236_mibs,
	.mib_func = AR8327_REG_MIB_FUNC
};

const struct ar8xxx_chip ar8337_chip = {
	.caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
	.config_at_probe = true,
	.mii_lo_first = true,

	.name = "Atheros AR8337",
	.ports = AR8327_NUM_PORTS,
	.vlans = AR8X16_MAX_VLANS,
	.swops = &ar8327_sw_ops,

	.reg_port_stats_start = 0x1000,
	.reg_port_stats_length = 0x100,
	.reg_arl_ctrl = AR8327_REG_ARL_CTRL,

	.hw_init = ar8327_hw_init,
	.cleanup = ar8327_cleanup,
	.init_globals = ar8327_init_globals,
	.init_port = ar8327_init_port,
	.setup_port = ar8327_setup_port,
	.read_port_status = ar8327_read_port_status,
	.read_port_eee_status = ar8327_read_port_eee_status,
	.atu_flush = ar8327_atu_flush,
	.atu_flush_port = ar8327_atu_flush_port,
	.vtu_flush = ar8327_vtu_flush,
	.vtu_load_vlan = ar8327_vtu_load_vlan,
	.phy_fixup = ar8327_phy_fixup,
	.set_mirror_regs = ar8327_set_mirror_regs,
	.get_arl_entry = ar8327_get_arl_entry,
	.sw_hw_apply = ar8327_sw_hw_apply,

	.num_mibs = ARRAY_SIZE(ar8236_mibs),
	.mib_decs = ar8236_mibs,
	.mib_func = AR8327_REG_MIB_FUNC
};
